Side Extension approval rate in Slough
Slough approved 82.5% of side extension applications, based on 2,806 decisions analysed.
Last updated: June 2026
82.5%
side extension approval rate
2,806
Side Extension decisions
2,316
Approved
490
Refused
82.9%
Slough overall
Side Extension applications are approved at roughly the same rate as the Slough average (82.9%).
How side extension compares in Slough
Side Extension
82.5%
Slough all applications
82.9%
Planning a side extension in Slough?
82.5% get approved, but the odds vary by street. Your Full Planning Analysis shows exactly what gets approved and refused near your property.
✓ Your ward's side extension approval rate
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Slough →
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Slough
83.7%
84.0%
82.3%
87.5%
85.7%
85.7%
74.4%
83.2%
81.4%
71.4%
85.9%
47.4%
78.6%
78.3%
73.3%